Sentences with phrase «measured spatial distributions»

Using elaborate computer simulations, a team of researchers from RIKEN in Japan and the Max Planck Institute for Astrophysics (MPA) were able to explain the recently measured spatial distributions of radioactive titanium and nickel in Cassiopeia A, a roughly 340 year old gas remnant of a nearby supernova.

Not exact matches

Accompanying the beam extraction, the spatial flow distribution of the negative hydrogen ions was investigated by measuring the flow of negative hydrogen ions with the use of a compound - type electrostatic probe with four needle - type electrodes irradiated by laser pulse.

«By comparing the measured craters to the number and spatial distribution of large impact basins on Mercury, we found that they started to accumulate at about the same time, suggesting that the resetting of Mercury's surface was global and likely due to volcanism,» said lead author Dr. Simone Marchi, who has a joint appointment between two of NASA's Lunar Science Institutes, one at the SwRI in Boulder and another at the Lunar and Planetary Institute in Houston.

Finally, we compare our results to previous measures of the spatial distribution of stars and brown dwarfs in Taurus, and briefly discuss their implications.

As a prototyping exercise for the moderate ‐ resolution imaging spectroradiometer (MODIS) albedo / BRDF product, we demonstrate the retrieval of bidirectional reflectance distribution functions (BRDFs) and red spectral albedo measures for the New England region, United States, from merged AVHRR and GOES radiances at a 1 km2 (nominal) spatial scale.

The advantage of error reduction that comes from multiple sampling begins to degrade when the «single» quantity being measured produces a set of random errors that has a Gaussian distribution about the mean that is significantly broadened by regional or spatial variations of the mean over the sample space.

The relationship between SSTs and spatial gradients in changes in (extreme) precipitation is an important finding for analysing necessary measures to anticipate future changes in the spatial and temporal distribution of rainfall in the country.

Hansen 2005 concluded that, at least for climate forcing agents over the historical period, Fs was a good measure of the effective forcing (the product of a forcing, however defined, and the efficacy taken relative thereto), notwithstanding that some forcings had different spatial distributions from others.

Although satellites can used for example to obtain spatial distribution of temperature, clouds, water vapour, aerosols in the atmosphere it appears much more difficult to measure the physical characteristics of the oceans for example the distribution of the optical depth of the particles in the oceans.